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  <title>Simulates motion blur</title>

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</div><hr /><div id="imagick.motionblurimage" class="refentry">
 <div class="refnamediv">
  <h1 class="refname">Imagick::motionBlurImage</h1>
  <p class="verinfo">(PECL imagick 2.0.0)</p><p class="refpurpose"><span class="refname">Imagick::motionBlurImage</span> &mdash; <span class="dc-title">Simulates motion blur</span></p>

 </div>

 <div class="refsect1 description" id="refsect1-imagick.motionblurimage-description">
  <h3 class="title">说明</h3>
  <div class="methodsynopsis dc-description">
   <span class="type">bool</span> <span class="methodname"><strong>Imagick::motionBlurImage</strong></span>
    ( <span class="methodparam"><span class="type">float</span> <code class="parameter">$radius</code></span>
   , <span class="methodparam"><span class="type">float</span> <code class="parameter">$sigma</code></span>
   , <span class="methodparam"><span class="type">float</span> <code class="parameter">$angle</code></span>
   [, <span class="methodparam"><span class="type">int</span> <code class="parameter">$channel</code><span class="initializer"> = Imagick::CHANNEL_DEFAULT</span></span>   
  ] )</div>

  <p class="para rdfs-comment">
   Simulates motion blur.  We convolve the image with a Gaussian
   operator of the given radius and standard deviation (sigma).
   For reasonable results, radius should be larger than sigma.
   Use a radius of 0 and MotionBlurImage() selects a suitable
   radius for you. Angle gives the angle of the blurring motion.
  </p>
 </div>


 <div class="refsect1 parameters" id="refsect1-imagick.motionblurimage-parameters">
  <h3 class="title">参数</h3>
  <p class="para">
   <dl>

    
     <dt>
<em><code class="parameter">radius</code></em></dt>

     <dd>

      <p class="para">
      The radius of the Gaussian, in pixels, not counting the center pixel.
      </p>
     </dd>

    
    
     <dt>
<em><code class="parameter">sigma</code></em></dt>

     <dd>

      <p class="para">
      The standard deviation of the Gaussian, in pixels.
      </p>
     </dd>

    
    
     <dt>
<em><code class="parameter">angle</code></em></dt>

     <dd>

      <p class="para">
      Apply the effect along this angle.
      </p>
     </dd>

    
    
     <dt>
<em><code class="parameter">channel</code></em></dt>

     <dd>

      <p class="para">
       Provide any channel constant that is valid for your channel mode. To
       apply to more than one channel, combine channeltype constants using
       bitwise operators. Refer to this
       list of <a href="imagick.constants.html#imagick.constants.channel" class="link">channel constants</a>.
       The channel argument affects only if Imagick is compiled against ImageMagick version
       6.4.4 or greater.
      </p>
     </dd>

    
   </dl>

  </p>
 </div>


 <div class="refsect1 returnvalues" id="refsect1-imagick.motionblurimage-returnvalues">
  <h3 class="title">返回值</h3>
  <p class="para">
   成功时返回 <strong><code>TRUE</code></strong>。
  </p>
 </div>


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